Phlegm is naturally clear. So, if your phlegm is a different color, such as yellow or green, you may have a viral or bacterial infection. Brown, red, or black phlegm may be a sign of a more ...

However, bronchitis is one of many conditions that can lead to excess phlegm, and while phlegm’s color provides some information on health status, it does not provide the whole picture.

If you're coughing up brown mucus, though, you should see a doctor because this could be a sign of bronchitis. Black mucus is usually due to smoking Black mucus is most common among heavy smokers ...

Black mucus may be produced in response to a fungal infection and brown can be a result of pneumonia. White can signal bronchitis, while red may be a sign a person has TB or even congestive heart ...

It could also be a sign of bronchitis, so check with your doctor if you're bringing up brown mucus. Black mucus: This could come from smoking or working in a place with a lot of dust and dirt.

Black mucus and/or phlegm can be caused by breathing in dark-coloured dirt or dust. “ Smoking can also cause black streaks in your mucus,” says Dr Brewer. Suffering from a cold?

White phlegm. This is not to be confused with clear phlegm. You can’t see through it, and it is a thicker consistency. It could indicate bronchitis, an infection of the airways leading to the lungs.

“Nasal mucus that would necessitate a visit to your doctor may include frequent nosebleeds, nasal congestion that doesn’t go away, thick nasal mucus associated with facial pain, pressure, and smell ...

The color of your mucus can reveal some surprising things about your health. ... "It can be related to a bacterial infection like bronchitis, ... If your mucus is brown or black ...

Struggling through a nasty round of bronchitis with little better to do than binge watch Netflix and feel epically sorry for myself, I pondered the ageless cold-and-flu-season question: Phlegm.

Coughing up white mucus or phlegm can indicate several conditions, including asthma, bronchitis, and chronic obstructive pulmonary disease (COPD). In some cases, a person may need to see a doctor ...